Gamboge Nova (W248)andnbsp;Gomme-Gutte Nova

Benzimidazolone Yellow (monoazo) is a pigment with dull tints and an average drying time.

Historically, the benzimidazolone group of pigments was developed and patented in 1960 by Hoechst A.G., a German chemical manufacturer that was a forerunner of the pharmaceutical company Aventis.

Nickel Azo Yellow (inorganic) is a transparent, moderately staining yellow pigment with high tinting strength. It is considered a good colour match in botanical and landscape painting, because natural gamboge (NY24), an historic yellow pigment has fair to poor lightfastness.

Historically, Nickel azomethine yellow has been developed as an artist pigment because it is a close match for gamboge, a historic yellow.

Isoindolinone Yellow (organic synthetic) is a high performance pigment of excellent brightness and an average drying time.

Historically, the first isoindoline pigments were patented in 1946, and commercial production of pigments in this group began in the 1960s. Several isoindoline yellow pigments are available.

• Pigments:andnbsp;Benzimidazolone Yellow (monoazo) PY154, Nickel Azo Yellow (nickel azomethine yellow) PY150, Isoindolinone Yellow (isoindolinone yellow) PY110
• Code TKE
• Permanence:andnbsp;*** Moderately Durable Colour.andnbsp;Moderately Durable Colour. Benzimidazolone Yellow has excellent lightfastness, Nickel azomethine yellow has excellent lightfastness, Isoindolinone Yellow has excellent lightfastness.
• Opacity/Transparency: Transparent,
• Staining Quality: Semi-Staining, easy colour to lift.
• Quality: Exceptional
• Price Series: B
• Toxicity:andnbsp;Benzimidazolone Yellow is not considered toxic.andnbsp;Nickel azo yellow pigment is mildly toxic, and is often labeled as hazardous. Avoid respiratory and skin exposure to pigment dust. It should be disposed of properly with other hazardous wastes, not washed down the sink. However, the contribution of artist pigments to levels of nickel metal complexes in the environment is almost insignificant. Nickel is often present in the environment naturally. Nickel is used heavily in steelmaking, and in many industrial processes and products.andnbsp;Isoindolinone Yellow is not considered toxic.